Fountain pen



which the followin Patented Oct. 9, 1923.

rrao sTTE PATENT OFFICE. l

FOUNTAIN PEN.

Application med September 21.1822. Serial No. 589,577.

To all 'whom it may concern: v

Be it knownthat I, JOHN DUTCHAK -a citizen of Ukraine, residin -at Hyde Park, in the county of Suffolk an State of Massachusetts, have invented certain new and useful improvements in Fountain Pens, of

is a specification.

This invention re ates to certain new and useful improvements in fountain pens and has particular reference to a fountain pen of the self-filling type wherein the tensioned sliding and telescoplng section of the pen is adapted for operation during the filling of the pen.

A further object of the invention is to provide in a fountain pen of the type above set forth, the provision of means to promote the proper flow of ink from the pen and preventing the coagulation of ink at the point thereof. Y

With the above general objects inview and others that will appear as the nature of the invention is better understood, the same consists of the novel form, combination and arrangement of parts hereinafter more fully described, shown in the accompanying drawing and claimed.

In the drawing, wherein like reference characters designate corresponding parts throughout the several views,

Figure 1 is a side elevational View of a fountain pen constructed in accordance with the present invention showing the finger rest detachably connected thereto,

Figure 2 is a longitudinal sectional view of the pen showing the tensioned telescoping sections, and the tensioned plunger for promoting the proper flow of ink from the pen,

Figure 3 shows side elevational views of the tensioned sliding casin and the enclosina` collar for the lower en thereof,

Figure 4 is a side elevational view of the reservoir or barrel,

Figure 5 is a side elevational view of the tensioned plunger associated with the sliding` casing,

of the removablelink feeding end of the pen,

Figure 7 shows side and rear elevationa views of the pen int, and

Figure 8 is a eveloped plan view of theigure 6 shows two side elevational'views i inner end 2 and an outwardly directed an-- fning an internal shoulder` 6 that is engaged by the outwardly directed flange 3 upon the barrel section 1 as shown in Fig. 2, the reduced threaded inner end 5 of the tubular casing 4 receivin the collar 7to provide the proper frictiona engagement between thev tubular caslng and barrel. A tubular plunger rod section embodies an upper enlarged end 8 carrying a relatively long dependin tubular stem 9 delining a shoulder 10 at t e inner end of the upper enlarged section 8, while said secti'on is externally threaded as at 11 as clearly shown in Fig. 5.v The upper end of the tubular casing 4 is internally threaded as illustrated in Fig. 2 for engagement with the threads, 11 u on the tubular stem section, the parts w en assembled presentingthe stem section 9 in the position illustrated in Fig. 2 for telescopic reception in the reservoir or barrel 1. To hold the tubular casing 4 at its limit of outward movement as shown in Fig. 2, with Vthe flange 3 upon the barrel engaging the shoulder 6 upon the tubular caslng, a coil spring 12 surrounds the tubular stem 9, engaging at its upper end the shoulder 10 while the lower end thereof engages the flan e 3 upon the barrel.

Te tip of the fountain pen includes a tubular section 13 externally threaded at its upper end as at 14 for engagement with internal threads formed at the inner ends of the barrel 1, the other end of the tubular section 13 belng reduced as at 15, terminally tapered as at 16 and having one side ofthe reduced end 15 grooved as at 17 with spaced "ffopenings 18 and 19 provided in the bottom wall of the groove and communicating with the bore of the tubular section 13 as illustrated in Fig.j2.

The pen point associated with the ti 13 is formed from the blank 20, shown in ig. 8, of substantiall rectangular formation in plan view, the b ank embodying side wings 21, depending side pointed sections 22 and a central slitted depending pointed section 23 constituting the writing goint of the pen. An extension 24 is carrle by the u per edge of the blank 20, and when the b ank is bent into circular formation., asfshowiiiin lFig. 7, the edges of the side sections 21 are protect the pen point 20.

moved into engagement, while the ofuter edges of the lpomt 22 engage each other to constitute an ink pocket in the body portion of the pen oint. rllhe curved extension 2t carried by t e blank is received in the groove 25 provided in thetubular section 13 adjacent the reduced end 15 While the circular portion of the pen point encloses the reduced end 15 as shown in Fig. 2.

The upper end of the tubular section 8 has a sleeve 26 internally threaded therein as illustrated in Fig. 2, said sleeve carrying an inwardly directed annular dange 27 defining a central opening 28 through which a stem 29 slidably extends, the inner end of said stem carrying agdisk head 30 spaced in- Wardly of said dange and forming a closure for the opening 28, the disk being retained in'. engagement with said flange by the coil spring 31 surrounding the stem 29, engaging the flange at its inner end and engaging the button head 32 secured to the outer end of the stem. A closure cap 33 rictionally engages the tapered end 2 of the Abarrel 1 to A finger rest or support is associated' with the barrel 1 and includes a Spring clip l34': carrying a ring 35`that is plvoted to the clip as at 36, the index linger of the hand being positioned in the ring for freely supporting the pen and permitting read movement thereofduring the act of Writing.

From the above detail description ofthe device, itis believed that the construction and operation thereof will at once be apparent, it being noted that when it is desired to ll the barrel 1 with ink, the point 20 is dipped into a well and the tubular casin t and stem 9 pressed inwardly against ghe tension of the spring 12 to exhaust air from the barrel 1 through the openin in the reduced end 15 of the pen tip 13, t e return of the casing and stem to their normal posi tions drawing ink into said barrel. Should the discharge openings 18A and 19 in the tip be clogged by ink,l or should the ink fail to feed to the point properly, reciprocations of the stem 29 by pressingupon the button head 32 will cause the air in the upper end of the barrel 1 and stem 9 to be com 'ressed for forcibly ejecting said ink and c caring'v the opening. `The particulartype of pen point employed in connection withthe pen meneer `v the proper feeding ot the inlr to the writing point while the linger support facilitates ready handling of the pen with unrestricted movement thereof duringthe act ot writing.

While there is herein shown and described the'preferred embodiment of the present invention it is nevertheless to be understood that minor changes may be made therein without departing trom the spirit and scope of the invention as claimed.

What is claimed as new is 1. lin a fountain pen of the type described, al barrel, a tubular plunger stem resiliently supported thereon, a tip removably carried by the inner end of the barrel, a pen point positioned in the tip, a tubular casin se? cured to the stem inclosing a portion o the `barrel and slidable thereon, a sleeve carried by the outer end of the stem, and a tensioned plunger rod associated with the 2. ln a fountain pen of the type described, a barrel, a tubular plunger stem resiliently supported thereon, a tip removably carried by the inner end of the barrel, -a pen point positioned inthe tip, a, tubular casin secured to the stem inclosing a portion o the barrel and slidablethereon, a sleeve carried by the outer end ot the stem, a tensioned plunger rod associated with the sleeve and vcooperatimg means carried by the barrel and lsleeve, a tensioned, plunger rod extending through said aperture, and a disk head carried by the inner end of the rod for closing said aperture.

' 4l. ln a fountain pen of the type described, a barrel, a tip carried by one end thereof, resilientl means slidably associated with said barrel tor drawing ink therein through said e tip, and tensioned reciprocating means carried by the aforesaid means for forcing ink through the tip. In testimony whereof ll i my signature,

round. reprenait. 

